Tack-attached button



May 27, 1930.

M. l-l'. CARR 1,760,835

TACK ATTACHED BUTTON Filed Aug. 6 1928 Patented May 27, 1930 UNITEDSTATES'PATT @Fifi MOSES F. CARR, OF LEXINGTON, MASSACHUSETTS, ASSIGNORTO UNITED-CARR FAS- TENER CORPORATION, OF CAMBRIDGE, MASSACHUSETTS, ACORPORATION F MAS- SACHU'SETTS TACK-ATTACHED `isn-'MON Application filedAugust 6, 1928. YSerial No. 297,809.

My invention aims to provide improvements in tack-attached buttons.

In the drawings, which illustrate a preferred embodiment of my inventionFigure 1 is a section through a complete tack-attached buttoninstallation;

F ig. 2 is a section of the parts of the button assembly just prior tosecuring them together;

Fig. 3 is an underside plan view of the button; and Fig. 4 is a planview of the tack.v

Referring to the drawings, I have illustrated a sheet metaltack-attached button adapted for use on garments and other articleswhere a button is desired.

The button has a body portion which is substantially the same as thatshown and more fully described in my co-pending application Serial No.297,807 iiled herewith.V The body portion has the shank 1 provided withthe integral ange piece 2 having the peripheral outwardly flared wall 3.The body portion also has integral tack receiving and clenching means 4located within the shank 1.

The button head includes a tcp or cap-piece 5 and the flange piece 2,the cap-piece being secured to the flange piece by crimping a portien 6of the cap-piece over the wall 3, as shown in Figs. 1 and 2.

Between the pieces 2 and 5 I have secured a relatively thick plate 7 ofhard metal which rests against the upper end of the tack receiving andclenching means 4.

The tack has a head 8 and a pointed shank 9. l/Vhile it is not necessaryto provide the head of the tack with a cap, I have illustrated one inthe drawings because in some instances it is desirable. The cap 10(Figs. 1 and 2) has a rolled edge 11 and, between the rolled edge andthe center of the cap, a double annular wall l2 which provides acup-shaped portion to receive the head 8 of the tack. The cap is securedto the tack by clenching the double wall 12 beneath the head of thestud. This cap covers a greater area of the material 13 to which thebutton is secured and, therefore, provides for gripping a larger area ofthe material 13, as well as to provide a finish for the head of thetack.

When securing the button to the material 13, the tack and button may beplaced in suitable dies (not shown) which move one toward the other.Thus, the pointed shank 9 of the tack will be forced through thematerial 13, through the restricted opening 14 and into the tack turningand clenching means 4 where the end of the tack is upset by the curvedanvil-like surface 15 to form a bunch 16 ou the end of the tack. Thisbunch 16 is larger in diameter than the aperture 14 and, therefore,cannot be withdrawn therethrough.

During the attaching operation, the plate 7 back-supports the curvedanvil portion 15 and prevents the point of the tack piercing the head.Therefore, when the plate 7 is used it is unnecessary to have a hole inthe cappiece 5 to permit insertion of a die to backsupport the tackclenching and turning means 4. It is desirable to have a simple vbuttonwhich is durable and has an imperforate head and, therefore, the buttonwhich I have just described represents an important advance in the art.It embodies all the desirable features of a particular button with fewerparts than has been possible in buttons of this type heretofore made, sofar as applicant is aware.

While I have illustrated and described a preferred embodiment of myinvention, I do not wish to be limited thereto and, therefore, referenceis made to the following claims which more fully cover the scope of myinvention.

Claims: l

1. In a tack-attached fastener installation, a` tack having a head, ashank and a cap secured to said head, said cap being secured to saidhead by a wall formed integral with said cap and located between theperiphery of said tack head and the periphery of said cap, said wallbeing turned over the edge of the tack head.

2. In a tack-attached fastener installation, a tack having a head, ashank and a cap secured to said head, said cap being secured to saidhead by a double wall formed integral with said cap and located betweenthe periphery of said tack head and the periphery of said cap, said Wallbeing turned over the edge of the tack head.

3. In a fastener installation, a fastening member, a carrying medium andan attaching element, said attaching element having a head and a shank,and a cap Secured to said head, said cap having a Wall formed integralthere'- With and located between the periphery of the head of theattaching element andthe periphery of the cap andsaid Wall being' turnedover the edge ofthe head ofthe` attaching element to secure said partstogether.

In testimony whereof, I have.V signedmy? name to this specification. l Y

MOSES'F. GARR:

